This March I will be transferring in Vancouver, arriving on a flight from Seattle, and continuing to Asia. (This means I only have to clear the CBSA, where they check your passport and boarding passes). My layover is about 1 hour and 13 minutes.

Is it possible for me to still make it on time even with a small delay? Is there anyone who flew from SeaTac to YVR and transiting to an international flight and made it?

Both flights are on Air Canada, and it's a single-ticket trip.

I am asking this fairly early because I am a nervous wreck who hasn't taken transfer flights before. There's only one flight per day going out to the destination in Asia with Air Canada.

@SamJones the YVR site states that one doesn't need to pick up checked luggage and re-check it in this situation. There doesn't seem to be a requirement to go through security either. However one does indeed need to go through passport control. yvr.ca/en/passengers/navigate-yvr/passenger-guides
– jcaronJan 9 '18 at 11:54

However, it's vulnerable to small delays and two long lines at Immigration & Customs. I had a similar connection once in Ottawa and the only way I made it was by begging my way through the Immigration line. I got lucky, since most other people didn't connect themselves and so they where happy to let me go ahead.

Is there not an expedited Customs clearance process for international connecting passengers at YVR? I understood some airports (e.g. YYZ) have this, but I never make such connections, since I always originate trips from Canada.
– Jim MacKenzieJan 9 '18 at 14:55